99230131 has 16 divisors (see below), whose sum is σ = 133233408. Its totient is φ = 71373600.

The previous prime is 99230081. The next prime is 99230137. The reversal of 99230131 is 13103299.

It is a cyclic number.

It is not a de Polignac number, because 99230131 - 2¹⁷ = 99099059 is a prime.

It is a super-2 number, since 2×99230131² = 19693237796554322, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 99230131.

It is not an unprimeable number, because it can be changed into a prime (99230137) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 48565 + ... + 50566.

It is an arithmetic number, because the mean of its divisors is an integer number (8327088).

Almost surely, 2^99230131 is an apocalyptic number.

99230131 is a gapful number since it is divisible by the number (91) formed by its first and last digit.

99230131 is a deficient number, since it is larger than the sum of its proper divisors (34003277).

99230131 is a wasteful number, since it uses less digits than its factorization.

99230131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 99162.

The product of its (nonzero) digits is 1458, while the sum is 28.

The square root of 99230131 is about 9961.4321761482. The cubic root of 99230131 is about 462.9646750335.

The spelling of 99230131 in words is "ninety-nine million, two hundred thirty thousand, one hundred thirty-one".